Patents by Inventor Werner Koegel

Werner Koegel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electrical heater for media, particularly flow heater
    Patent number: 5434388
    Abstract: A flow heater (11) has a stainless steel tube (1Z), around which is externally placed a polyimide (KAPTON) insulating film (14) with an overlap (15). Under pretension is wound onto the same a metallic resistance material heating tape (17), so that the resulting elasticity reserve, also at operating temperature, ensures a good application of the heating tape to the film. Temperature switching devices for preventing excess temperatures or running dry can be fitted in the overlap area (15).
    Type: Grant
    Filed: October 7, 1993
    Date of Patent: July 18, 1995
    Assignee: E.G.O. Elektro-Gerate Blanc u. Fischer
    Inventors: Willi Kralik, Siegbert Berger, Franz Bogdanski, Peter Stupp, Werner Koegel